package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

/**
 * 向表中插入一条记录
 */
public class Demo2 {
    public static void main(String[] args) throws Exception{
        //1.加载驱动(每种数据库驱动的类名和包名都是固定的)
        //Class.forName("com.mysql.cj.jdbc.Driver");
        //2.
//        Connection connection = DriverManager.getConnection(
//                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
//                "root","root");  //mysql是数据库名，改为tedu
//        System.out.println("与数据库建立链接");
        //3.
        Connection connection = DBUtil.getConnection();
        Statement statement = connection.createStatement();
        /*
            向user表中插入一条记录
            INSERT INTO user(username,password,nickname,age)
            VALUES('张三','123456','阿三',22)
         */
        String sql = "INSERT INTO user(username,password,nickname,age) \n" +
                "            VALUES('张三','123456','阿三',22)";
        int num = statement.executeUpdate(sql);
        System.out.println("插入完毕，影响了表中"+num+"条记录");
        connection.close();




    }
}
